1936 Naval Revolt

1936 Portuguese naval revolt
	Part of spillover of the Spanish Civil War
	; Mutineers are arrested by government police forces.
Date	8 September 1936
Location	Lisbon, Portugal
Result	Revolt crushed
Belligerents
Estado Novo	Organização Revolucionária da Armada
Commanders and leaders
António de Oliveira Salazar	Unknown
Strength
Shore defences; 1 submarine	1 aviso; 1 destroyer
Political support
National Union	Portuguese Communist Party
Casualties and losses
Unknown	Both ships beached; 12 sailors killed; 20 sailors wounded; 238 sailors arrested

The 1936 Naval Revolt (Portuguese: Revolta dos Marinheiros de 1936, lit. '1936 Sailors' Revolt') or Tagus boats mutiny (Motim dos Barcos do Tejo) was a mutiny in Portugal that occurred on 8 September 1936 aboard the aviso Afonso de Albuquerque and destroyer Dão. It was organized by the Revolutionary Organization of the Fleet (Organização Revolucionária da Armada, ORA), a left-wing group with links to the Portuguese Communist Party.

The mutiny broke out on 8 September 1936 among communist sailors in the Portuguese Navy's two newest warships moored in the estuary of the Tagus River near Lisbon. Their aim was ostensibly to take part in the Spanish Civil War alongside the Republicans by sailing to a Republican-held port in the Mediterranean. However, the revolt failed and the convicted sailors were the first to be sent to the Tarrafal concentration camp established in the Cape Verde Islands to house political prisoners.